IATA code

IATA codes are abbreviations that the International Air Transport Association (IATA) publishes to facilitate air travel. They are typically 1, 2, 3, or 4 character combinations (referred to as unigrams, digrams, trigrams, or , respectively) that uniquely identify locations, equipment, companies, and times to standardize international flight operations. All codes within each group follow a pattern (same number of characters, and using either all letters or letter/digit combinations) to reduce the potential for error.

IATA airport codes are trigram letter designations for airports, like "ORY" (Paris-Orly Airport) and "CPT" (Cape Town International Airport).

IATA airline designators are digram letter/digit codes for airline companies, like "M6" (Amerijet), "NH" (All Nippon Airways), and "4A" (Air Kiribati).

IATA aircraft type designators are trigram letter/digit codes used for aircraft models, like "J41" (British Aerospace Jetstream 41) and "744" (Boeing 747-400).

Digram letter codes are used for countries as specified in ISO 3166-1 alpha-2. Two additional codes are used:

Trigram letter codes are used for currencies as specified in ISO 4217.

IATA timezone is a country or a part of a country, where local time is the same. IATA timezone code is constructed of 2–4 characters (letters and digits) as follows:

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